A:
Positive:
1 x 1202413755 x 2404827525 x 4809655125 x 961931397 x 3028751985 x 605752423 x 496259925 x 12115
Negative:
-1 x -120241375-5 x -24048275-25 x -4809655-125 x -961931-397 x -302875-1985 x -60575-2423 x -49625-9925 x -12115
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 120,241,375, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 120,241,375 | |
| -1 | -120,241,375 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,241,375.
Example:
1 x 120,241,375 = 120,241,375
and
-1 x -120,241,375 = 120,241,375
Notice both answers equal 120,241,375
With that explanation out of the way, let's continue. Next, we take the number 120,241,375 and divide it by 2:
120,241,375 ÷ 2 = 60,120,687.5
If the quotient is a whole number, then 2 and 60,120,687.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 120,241,375 | |
| -1 | -120,241,375 |
Now, we try dividing 120,241,375 by 3:
120,241,375 ÷ 3 = 40,080,458.3333
If the quotient is a whole number, then 3 and 40,080,458.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 120,241,375 | |
| -1 | -120,241,375 |
Let's try dividing by 4:
120,241,375 ÷ 4 = 30,060,343.75
If the quotient is a whole number, then 4 and 30,060,343.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 120,241,375 | |
| -1 | 120,241,375 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 125 | 397 | 1,985 | 2,423 | 9,925 | 12,115 | 49,625 | 60,575 | 302,875 | 961,931 | 4,809,655 | 24,048,275 | 120,241,375 |
| -1 | -5 | -25 | -125 | -397 | -1,985 | -2,423 | -9,925 | -12,115 | -49,625 | -60,575 | -302,875 | -961,931 | -4,809,655 | -24,048,275 | -120,241,375 |
Here are some more numbers to try:
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